{"id":"https://openalex.org/W2025891613","doi":"https://doi.org/10.1109/tsp.2012.2205682","title":"UWB Sparse/Diffuse Channels, Part II: Estimator Analysis and Practical Channels","display_name":"UWB Sparse/Diffuse Channels, Part II: Estimator Analysis and Practical Channels","publication_year":2012,"publication_date":"2012-06-22","ids":{"openalex":"https://openalex.org/W2025891613","doi":"https://doi.org/10.1109/tsp.2012.2205682","mag":"2025891613"},"language":"en","primary_location":{"id":"doi:10.1109/tsp.2012.2205682","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tsp.2012.2205682","pdf_url":null,"source":{"id":"https://openalex.org/S168680287","display_name":"IEEE Transactions on Signal Processing","issn_l":"1053-587X","issn":["1053-587X","1941-0476"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Signal Processing","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5064634430","display_name":"Nicol\u00f2 Michelusi","orcid":"https://orcid.org/0000-0002-5521-6496"},"institutions":[{"id":"https://openalex.org/I138689650","display_name":"University of Padua","ror":"https://ror.org/00240q980","country_code":"IT","type":"education","lineage":["https://openalex.org/I138689650"]}],"countries":["IT"],"is_corresponding":true,"raw_author_name":"Nicol\u00f2 Michelusi","raw_affiliation_strings":["Department of Information Engineering, University of Padova, Padova, Italy","Department of Information Engineering; University of Padova; Padova; Italy"],"affiliations":[{"raw_affiliation_string":"Department of Information Engineering, University of Padova, Padova, Italy","institution_ids":["https://openalex.org/I138689650"]},{"raw_affiliation_string":"Department of Information Engineering; University of Padova; Padova; Italy","institution_ids":["https://openalex.org/I138689650"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5072739163","display_name":"Urbashi Mitra","orcid":"https://orcid.org/0000-0002-8896-1177"},"institutions":[{"id":"https://openalex.org/I1174212","display_name":"University of Southern California","ror":"https://ror.org/03taz7m60","country_code":"US","type":"education","lineage":["https://openalex.org/I1174212"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Urbashi Mitra","raw_affiliation_strings":["TheMing Hsieh Department of Electrical Engineering, University of Southern California, Los Angeles, CA, USA","Ming Hsieh Dept. of Electr. Eng., Univ. of Southern California, Los Angeles, CA, USA"],"affiliations":[{"raw_affiliation_string":"TheMing Hsieh Department of Electrical Engineering, University of Southern California, Los Angeles, CA, USA","institution_ids":["https://openalex.org/I1174212"]},{"raw_affiliation_string":"Ming Hsieh Dept. of Electr. Eng., Univ. of Southern California, Los Angeles, CA, USA","institution_ids":["https://openalex.org/I1174212"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5071725365","display_name":"Andreas F. Molisch","orcid":"https://orcid.org/0000-0002-4779-4763"},"institutions":[{"id":"https://openalex.org/I1174212","display_name":"University of Southern California","ror":"https://ror.org/03taz7m60","country_code":"US","type":"education","lineage":["https://openalex.org/I1174212"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Andreas F. Molisch","raw_affiliation_strings":["TheMing Hsieh Department of Electrical Engineering, University of Southern California, Los Angeles, CA, USA","Ming Hsieh Dept. of Electr. Eng., Univ. of Southern California, Los Angeles, CA, USA"],"affiliations":[{"raw_affiliation_string":"TheMing Hsieh Department of Electrical Engineering, University of Southern California, Los Angeles, CA, USA","institution_ids":["https://openalex.org/I1174212"]},{"raw_affiliation_string":"Ming Hsieh Dept. of Electr. Eng., Univ. of Southern California, Los Angeles, CA, USA","institution_ids":["https://openalex.org/I1174212"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5005894115","display_name":"Michele Zorzi","orcid":"https://orcid.org/0000-0003-2870-4678"},"institutions":[{"id":"https://openalex.org/I138689650","display_name":"University of Padua","ror":"https://ror.org/00240q980","country_code":"IT","type":"education","lineage":["https://openalex.org/I138689650"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Michele Zorzi","raw_affiliation_strings":["Department of Information Engineering, University of Padova, Padova, Italy","Department of Information Engineering; University of Padova; Padova; Italy"],"affiliations":[{"raw_affiliation_string":"Department of Information Engineering, University of Padova, Padova, Italy","institution_ids":["https://openalex.org/I138689650"]},{"raw_affiliation_string":"Department of Information Engineering; University of Padova; Padova; Italy","institution_ids":["https://openalex.org/I138689650"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5064634430"],"corresponding_institution_ids":["https://openalex.org/I138689650"],"apc_list":null,"apc_paid":null,"fwci":1.4957,"has_fulltext":false,"cited_by_count":18,"citation_normalized_percentile":{"value":0.83750877,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":98},"biblio":{"volume":"60","issue":"10","first_page":"5320","last_page":"5333"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12024","display_name":"Ultra-Wideband Communications Technology","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T12024","display_name":"Ultra-Wideband Communications Technology","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11739","display_name":"Microwave Imaging and Scattering Analysis","score":0.9975000023841858,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10326","display_name":"Indoor and Outdoor Localization Technologies","score":0.9962999820709229,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/estimator","display_name":"Estimator","score":0.8925735354423523},{"id":"https://openalex.org/keywords/mean-squared-error","display_name":"Mean squared error","score":0.6897937059402466},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.6641710996627808},{"id":"https://openalex.org/keywords/thresholding","display_name":"Thresholding","score":0.6100624203681946},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.5889572501182556},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.520799994468689},{"id":"https://openalex.org/keywords/minimum-mean-square-error","display_name":"Minimum mean square error","score":0.43358325958251953},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.42554882168769836},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.35213804244995117},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.2177465856075287},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.20668509602546692},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.1271248757839203},{"id":"https://openalex.org/keywords/image","display_name":"Image (mathematics)","score":0.08270648121833801}],"concepts":[{"id":"https://openalex.org/C185429906","wikidata":"https://www.wikidata.org/wiki/Q1130160","display_name":"Estimator","level":2,"score":0.8925735354423523},{"id":"https://openalex.org/C139945424","wikidata":"https://www.wikidata.org/wiki/Q1940696","display_name":"Mean squared error","level":2,"score":0.6897937059402466},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.6641710996627808},{"id":"https://openalex.org/C191178318","wikidata":"https://www.wikidata.org/wiki/Q2256906","display_name":"Thresholding","level":3,"score":0.6100624203681946},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.5889572501182556},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.520799994468689},{"id":"https://openalex.org/C90652560","wikidata":"https://www.wikidata.org/wiki/Q11091747","display_name":"Minimum mean square error","level":3,"score":0.43358325958251953},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.42554882168769836},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.35213804244995117},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.2177465856075287},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.20668509602546692},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.1271248757839203},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.08270648121833801}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/tsp.2012.2205682","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tsp.2012.2205682","pdf_url":null,"source":{"id":"https://openalex.org/S168680287","display_name":"IEEE Transactions on Signal Processing","issn_l":"1053-587X","issn":["1053-587X","1941-0476"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Signal Processing","raw_type":"journal-article"},{"id":"pmh:oai:www.research.unipd.it:11577/2574674","is_oa":false,"landing_page_url":"http://hdl.handle.net/11577/2574674","pdf_url":null,"source":{"id":"https://openalex.org/S4377196283","display_name":"Research Padua  Archive (University of Padua)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I138689650","host_organization_name":"University of Padua","host_organization_lineage":["https://openalex.org/I138689650"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"info:eu-repo/semantics/article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":31,"referenced_works":["https://openalex.org/W1980454827","https://openalex.org/W1995128708","https://openalex.org/W2012462772","https://openalex.org/W2046922517","https://openalex.org/W2078204800","https://openalex.org/W2080953651","https://openalex.org/W2091190815","https://openalex.org/W2094497063","https://openalex.org/W2098115979","https://openalex.org/W2099660711","https://openalex.org/W2103122045","https://openalex.org/W2108982210","https://openalex.org/W2119560611","https://openalex.org/W2120983426","https://openalex.org/W2122938227","https://openalex.org/W2129865233","https://openalex.org/W2130771561","https://openalex.org/W2132381218","https://openalex.org/W2134829276","https://openalex.org/W2135046866","https://openalex.org/W2137628444","https://openalex.org/W2143587067","https://openalex.org/W2160202632","https://openalex.org/W2161042721","https://openalex.org/W2163363194","https://openalex.org/W2169147399","https://openalex.org/W2485089179","https://openalex.org/W2534068886","https://openalex.org/W2534515931","https://openalex.org/W2543631404","https://openalex.org/W3140751000"],"related_works":["https://openalex.org/W2075897667","https://openalex.org/W3125536267","https://openalex.org/W2907746047","https://openalex.org/W2999701797","https://openalex.org/W2073909383","https://openalex.org/W2101899800","https://openalex.org/W2338471520","https://openalex.org/W1516185633","https://openalex.org/W2537707321","https://openalex.org/W4384268300"],"abstract_inverted_index":{"In":[0,16,41,145],"this":[1,39,42],"two-part":[2],"paper,":[3],"the":[4,28,52,66,77,98,101,108,120,132,143,148,166,183,189,215],"problem":[5],"of":[6,51,69,81,100],"channel":[7,33,152,162,218],"estimation":[8,34,99,153,191],"in":[9,60,97,142,157,170],"Ultra":[10],"Wide-Band":[11],"(UWB)":[12],"systems":[13],"is":[14,25,63,92,111,173],"investigated.":[15],"Part":[17,61,171],"I,":[18],"a":[19,46,123,129,158,208],"novel":[20],"Hybrid":[21],"Sparse/Diffuse":[22],"(HSD)":[23],"model":[24,168],"proposed":[26,141,190],"for":[27,38,65,164,214],"UWB":[29],"channel,":[30],"and":[31,55,71,127,136,199,207],"new":[32],"strategies":[35],"are":[36,155,179,193],"designed":[37],"model.":[40,219],"paper":[43],"(Part":[44],"II),":[45],"Mean-Squared":[47],"Error":[48],"(MSE)":[49],"analysis":[50,75],"Generalized":[53,56,133],"MMSE":[54],"Thresholding":[57,134],"Estimators":[58],"developed":[59,169],"I":[62,172],"performed,":[64],"asymptotic":[67,185],"regimes":[68],"low":[70],"high":[72],"SNR.":[73],"The":[74,176],"quantifies":[76],"achievable":[78],"MSE":[79,186,206],"performance":[80],"these":[82,151],"schemes":[83,154],"over":[84],"unstructured":[85,198],"estimators.":[86],"Specifically,":[87],"we":[88,118],"prove":[89],"that":[90,107],"it":[91,114],"beneficial":[93],"to":[94,105,147,181,195],"be":[95],"conservative":[96],"sparse":[102,109,138,201],"component,":[103],"i.e.,":[104],"assume":[106],"component":[110],"sparser":[112],"than":[113],"actually":[115],"is.":[116],"Moreover,":[117,188],"analyze":[119],"scenario":[121],"with":[122],"non-orthogonal":[124],"pilot":[125],"sequence,":[126],"establish":[128],"connection":[130],"between":[131],"estimator":[135],"conventional":[137,197],"approximation":[139],"algorithms":[140],"literature.":[144],"addition":[146],"theoretical":[149],"analysis,":[150],"evaluated":[156],"more":[159],"realistic":[160,216],"geometry-based":[161,217],"emulator,":[163],"which":[165],"HSD":[167],"an":[174,205],"approximation.":[175],"numerical":[177],"results":[178],"shown":[180,194],"match":[182],"expected":[184],"behavior.":[187],"techniques":[192],"outperform":[196],"purely":[200],"estimators,":[202],"from":[203],"both":[204],"bit":[209],"error":[210],"rate":[211],"perspectives,":[212],"even":[213]},"counts_by_year":[{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":1},{"year":2018,"cited_by_count":1},{"year":2017,"cited_by_count":3},{"year":2016,"cited_by_count":4},{"year":2015,"cited_by_count":1},{"year":2014,"cited_by_count":2},{"year":2013,"cited_by_count":2},{"year":2012,"cited_by_count":1}],"updated_date":"2026-03-20T23:20:44.827607","created_date":"2025-10-10T00:00:00"}